网上找了一段利用aop计算耗时日志的_aop 效率

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.springframework.stereotype.Component;
 
import com.alibaba.common.lang.diagnostic.Profiler;
 
@Aspect
@Component
public class ProfilerAspectJ {
 
	private static final String DOT_SPLIT = ".";
 
	 //执行时间超过3s 的，输出出来
	private static final String THREADHOLD = "THREADHOLD";
 
	private static final long DEFAULTTHREADHOLD = 3000L;
 
	@Around("within(com.aliyun.activity.biz.*.impl..*)")
	public Object around(ProceedingJoinPoint jp) throws java.lang.Throwable {
		
		String className = jp.getTarget().getClass().getName();
		String method = jp.getSignature().getName();
		final String key = className + DOT_SPLIT + method;
		System.out.println("className: "+className);
		try {
			// 开始 Profiler
			Profiler.start(key);
			Profiler.enter(key);
			// 调用被代理类的方法
			return jp.proceed();
 
		} finally {
			Profiler.release();
			// 释放 start 的栈
			Profiler.release();
			try {
				long threadHold = DEFAULTTHREADHOLD;
				final long duration = Profiler.getDuration();
 
				if (duration > threadHold) {
					final String detail = Profiler.dump("Detail: ", "           ");
 
					StringBuffer msg = new StringBuffer();
					msg.append("调用服务：").append(className).append("的方法").append(method);
 
					if (null != jp.getArgs()) {
						msg.append(" 参数列表 [");
 
						for (int i = 0; i < jp.getArgs().length; i++) {
							Object obj = jp.getArgs()[i];
							msg.append(obj);
							if (i < jp.getArgs().length - 1) {
								msg.append(",");
							}
						}
						msg.append("]");
					}
 
					msg.append("耗时：").append(duration).append("ms，超过预期\n").append(detail).append("\n");
 
 
				}
 
			} finally {
				Profiler.reset();
			}
 
		}
 
	}
 
}